Envelop.



c. w. TULLAR.

'ENVELOP.

APPLICATION HLED FEBLZB. 1918.

1,273,956. Patented'July 30,1918.-

anoeutol UNITED STATES P T T OFFICE. 1

CHESTER w. TULLAR, or DE ROIT, MICHIGAN.

ENVELOP.

To all whom it may concern:

Be it known that I, CHEsTER W. TULLAR,

a citizen of the United States, residing at description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to envelops of'the class designed to effect a savingin postage, in which one of the flaps after sealing may be withdrawn for the examination of its contents whereby the postal authorities may determine if the character of the letter is such that it may be properly sent undera reduced rate of postage.

One object of this invention is to effect a saving in the amount of paper used to construct an envelop of the character named,

and while I am aware that envelops have been made with an end flap having a hooked portion to secure it when sealed, the arrangement has been such that the blank must be cut from stock sufiiciently wide to admit of the end flap overlapping when formed into an envelop, in order that the hooked end of one fiap may engage a gummed area on the overlapping flap. It will thus be evident that there is a considerable waste of material on each side of the flaps due to cutting a blank with overlapping end flaps;

Another object of this invention therefore is to effect a saving in the amount of stock used by cutting the blank from a relatively narrow sheet and providing one of its end flaps with a hooked portion adapted to engage an adhesive area formed on the lower flap of the envelop which also forms the major portion of the back of the envelop.

Secured to the adhesive area on the lower flap is a disk between which and the lower flap the hooked end flap is adapted to slide, it being thus seen that the disk and the wall formed by the lower flap serves as a guide to direct the hooked end of the flap into engagement with the adhesive area.

A further object of the invention is to provide means for guiding the hooked end of the flap toward the adhesive area with which the hooked portion interlocks.

With the foregoing and other objects in View which will appear as the description Specification of Letters Patent. P t nt d July 30 191 Application filed February 28, 1918.

Serial No. 219,571.

proceeds, the invention resides in the combination and arrangement of parts and in the ing the gummed portions, and also the disk,

which is partly broken away to expose'the adhesive or gummed jarea beneath with whlch the hooked'end of thefiap is adapted to engage.

Fig. 2-is-a view of the envelopas it would :filppear before closing the upper or sealing Fig. 3' is an'elevation of the blank of a modlfioation of the envelop shown in the preceding figure in which aguid'ing slot is.

provided in the end flap adapted to coordinate with an auxiliary adhesive area on the lower flap, whereby the hooked end of the end flap may be guided into engagement with the adhesive area with signed to interlock.

Fig. 4 is an elevation of the modification of the envelop before closing ;'a blank of which is shown in the preceding" figure.

which it is de- Referring now to the letters of reference placed upon the drawings A, denotes an envelop blank. B, indicates the front of the envelop- C, denotes one of the end flaps towhich the lower flap D, is V secured by means of the gunnned or adheslve element E, applied along one edge of the latter. F, is an adhesive area, preferablycircular in form applied to the lower flap D, which serves adual purpose,

namely-:-to secure the disk G, to'the flap,

and as the element with which the hooked end H, of the flap H, interlocks when the envelop is closed. I, indicates the upper flap adapted to close over the lower flap D, and the end flaps C, and H. I, designates an adhesive area along the edge of the flap I, to engage the end of the flap I, with the end flap G, and lower flap D.

In the modification shown in Figs. 3 and 4, a relatively larger disk or strip G, is attached to the lower flap D, by two disconnected adhesive areas F, and F, adapted re spectively to receive the hook H, in the end of the flap H, and the flaring slot H adjacent to the hook, the purpose of which is to guide the hook 11, into engagement with its co-acting adhesive area 1 upon inserting the flap H, when closing the end of the envelop.

It will be readily understood that the wall oi the disk or strip G, and the wall of the flap D, to which it is secured are held in spaced relation to each other by the interposed adhesive areas F and F, which thus form a channel for the passage of the hooked flap ll, between the disk and lower tlap,- and therefore when the flap is inserted it is not apt to become entangled with papers lodged in the envelop.

It will also be apparent that by providing an extension of the disk or strip beyond the edge otthe flap to which it is attached that the extension will serve to guide the hooked flap between the disk and the flap to which the latter is secured.

By engaging the loose flap in tl e manner shown it is not apt to become disengaged upon inserting papers in the envelop before the sealing flap is closed.

Having thus described my invention what I claim is 1. An envelop having a sealin flap, a side flap. and a bottom flap having overlapping portions, means for fixedly uniting parts of said overlapping portions, a loose side flap opposite the fixed side flap having hooks formed by cutting away a portion of said loose flap, a disk, and means for securing said disk to one of the fixed portions of the envelop, said means being adapted to cooperate with the books of the loose side flap to secure the latter in its closed position.

2. An envelop having a sealing flap, a side flap, and a bottom flap having overlapping portions, means for uniting parts of said overlapping portions together, a loose side flap opposite the fixed flap having a hook and also a guiding slot formed by cutting away portions of the loose flap, adhesive areas disposed in spaced relation to each other upon the bottom flap adapted to coordinate with the hook and guiding slot of the loose flap, and a disk secured to the bottom flap by said adhesive areas and extending beyond the edge of the bottom flap,

whereby it may assist in guiding the loose flap between the bottom flap and said disk and into engagement with the adhesive areas.

3. An envelop having a sealing flap, a bottom flap extending upwardly to a point adj acent to the fold of the sealing flap, and a relatively short side flap having overlapping portions, means for fixedly uniting parts of the overlapping portions of the respective flaps together, a loose side flap opposite to the fixed side flap having hooks and also a guiding slot formed by cutting away portions of the loose flap, a plurality of adhesive areas disposed in spaced relation to each other near the edge of the bottom flap adjacent to the end of the envelop carrying the loose flap, and a disk secured to the bottom flap by the adhesive areas and overlapping the edge of said bottom flap, whereby it may serve to guide the loose flap between the bottom flap and the disk and into engagement with the adhesive areas.

l. An envelop having a sealing flap, a bottom flap extending upwardly with a relatively wide edge paralleling and extending adjacent. to the fold of the sealing flap, a relatively short side flap having portions which overlap the bottom and sealing flaps, means for fixedly uniting said overlapping portions together, a loose side flap opposite the fixed flap having hooks and a guide slot formed by cutting away portions of the loose flap, said loose flap adapted to overlap the bottom and sealing flaps but not the fixed side flap, a plurality oi adhesive areas disposed in spaced relation upon the bottom flap adjacent to the end carrying the loose flap, and a disk or strip secured to the bot tom flap by said spaced adhesive areas and overlapping the edge of the bottom flap, whereby it may serve to guide the loose flap into engagement with the adhesive areas.

In testimony whereof, I sign this specification in the presence of two witnesses.

CHESTER W. TULLAR.

WVitnesses L. E. THOMAS, JOHN Consronvn, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. 0. 

